Nirbhay Cruise Missile Development

[WARREN SS]

Every AAA & SAM is design to intercept low flying targets ..

SA-6, SA-8, Akash and other AAA practice such on routinely basis ..

Yes they can
Akash has high probability than all

But Barak-8 has more probability hitting
Manuvering Target with MFSTAR AESA and high G load

Than others

 

[Immanuel]

Need a discussion on shooting down Pakistani Babur cruise missile.

Need an informed opinions only.

Babur is easy kill for Akash, Barak-8 is overkill

 

[AmoghaVarsha]

And the reason for believing Parikarma's quotes.

None i think.IDF is a paki site.

 

[Chinmoy]

Hi guys. Mach is referred in two way. One is 1200 KM/Hr and another is some 1030 KM./Hr.

If you go by definition, Mach is actually ratio of speed of a body with that of sound in air, not the speed itself. So although density of air does affect the speed of a body, but it doesn't effect that of sound. Its not like that you would hear someone faster in Sea shore and late in mountain top.

So when we do say Mach 1 speed, we are basically talking of the ratio, not the exact speed of the body.

 

[Chinmoy]

Every AAA & SAM is design to intercept low flying targets ..

SA-6, SA-8, Akash and other AAA practice such on routinely basis ..

It could achieved by interceptors like Mig-21 or Tejas too. The real game bit is of detecting and tracking.

 

[shiphone]

You are quoting anti ship missiles that have range of 1km for every 4-5 kg of missile weight. I was speaking of long range subsonic missile. All your missiles has 700kg weight and 150km range!

I made an obvious mistake - i said that turbojet is impossible for subsonic missile. Reality is that it is false as turbojet is capable of subsonic and turbofan capable of supersonic. However, the purpose of turbojet is defeated if it is used in subsonic ones due to its high fuel inefficiency. Its range will be pathetic for its weight. It is possible to use turbojet for subsonic but is FOOLISH and not feasible for long range missile.

Please stop nitpicking on minor details. I am not perfect, nor do I claim to be a vocabulary expert. I can make mistakes while conveying my ideas but if it is a minor vocabulary error or minor exaggeration, it is necessary to swallow it and take the spirit of the words.

yeah...and don't forget these...lol..it seems you need swallow back something more .
these funny baseless statements are not rare on DFI.

"Turbojet and turbofan are extremely different."
"Turbojet is you traditional jet motor which uses solid fuel"

---------
oooooh....it seems another GREAT theory was invented...

]You are quoting anti ship missiles that have range of 1km for every 4-5 kg of missile weight.

here's another one, C-705 AShM

320Kg, 140-170km range (Ship launch/Air launch) also powered by Turbojet.

1 Km for around 2 Kgs?..... is it? ...LOL... and so what?
if it was enlarged to around 1500 kg class, with the same equation, it coule cover 750km then.

 

[Chinmoy]

Fins looked same. BTW posted this type of pic on same day.

Fins this time are actually smaller then previous tests.

 

[Kshithij]

yeah...and don't forget these...lol..it seems you need swallow back something more .
these funny baseless statements are not rare on DFI.



---------
oooooh....it seems another GREAT theory was invented...



here's another one, C-705 AShM

320Kg, 140-170km range (Ship launch/Air launch) also powered by Turbojet.

1 Km for around 2 Kgs?..... is it? ...LOL... and so what?
if it was enlarged to around 1500 kg class, with the same equation, it coule cover 750km then.

If Nirbhay travels just 650km with 1.5 ton weight, yes it can be turbojet. But, if the range is 1000km+ with 1.2 ton missile and 300kg, it is impossible to be turbojet.

Your C705 has 320kg missile +120kg warhead for 140km range. But as weight of missile increases, the range per kg will decrease. A 1.2 ton C705 (with 300kg warhead, total of 1.5ton) can't travel 700km.

Tomahawk is an excellent example of turbofan engine weighing 1.8 ton with 450kg payload and range of 2500km.

Turbojet engine uses air to only burn fuel and then the exhaust is what propels the missile/plane. Turbofan is where fuel is burnt to rotate a fan like helicopter that pushes the air behind with high speed. Here, the majority of thrust comes from the air being pushed back than from exhaust. One if the best cases if both working together is jet engine - in normal mode, it is turbofan but in afterburner, it becomes like turbojet, though not a pure turbojet.

Even the best of your example shows that the cruise missile range can't exceed 50% if its weight. When the 320kg becomes 1200kg, the initial stages if the missile will have to carry 1200kg and the weight decreases over time. By the time last 320kg is left, the distance travelled will be lesser than 1km per 2kg. Maybe 1km per 3-4 kg. So, the total range is unlikely to be higher than 500km, forget 650km, even with the same warhead of 110kg. If the warhead size is increased to 300kg as in Nirbhay, it will be even less.

That being said, if 650km was indeed the range of the missile with full fuel, it is really bad range, even with 300kg warhead. Many details like warhead weight, fuel filled etc were not mentioned. It is hence difficult to judge correctly about the ability of the missile.

However, even with this limited information with wide ranging possibilities, one can be pretty sure that it is not a turbojet engine.

 

[G10]

Babur is easy kill for Akash, Barak-8 is overkill

Why in the video akash propulsion is stopped a while before blowing up?

 

[debspark90]

Yes they can
Akash has high probability than all

But Barak-8 has more probability hitting
Manuvering Target with MFSTAR AESA and high G load

Than others

Aerostat radars are also needed for downlooking, as the cruise missile would be terrain hugging and terrain masking.

 

[HariPrasad-1]

Be clear that the air viscosity depends on Mach number. Mach is a natural phenomenon and hence is prioritised.

Planes also have varying maximum speed at different altitude. Plane speed is also not fixed. They are just approximate speeds stated. It is indeed convenient to use kmph but that too has its flaws

If speed is in KMPH is mentioned with altitude, there shall be no confusion. e.g Tejas has a speed of 1350 kmph at sea level and 1700 kmph at 15 km altitude.

 

[HariPrasad-1]

None i think.IDF is a paki site.

No it is not. ..................

 

[Butter Chicken]

No it is not. ..................

It is owned and operated by a Pakistani

 

[HariPrasad-1]

It is owned and operated by a Pakistani

Who? I am a member and their members as as nationalist as we are. They just do not allow much bragging and that is all.

 

[HariPrasad-1]

oooooh....it seems another GREAT theory was invented...

True......................................

 

[HariPrasad-1]

yeah...and don't forget these...lol..it seems you need swallow back something more .
these funny baseless statements are not rare on DFI.



---------
oooooh....it seems another GREAT theory was invented...



here's another one, C-705 AShM

320Kg, 140-170km range (Ship launch/Air launch) also powered by Turbojet.

1 Km for around 2 Kgs?..... is it? ...LOL... and so what?
if it was enlarged to around 1500 kg class, with the same equation, it coule cover 750km then.

FOr nirbhay, they ratio shall be around 1. For supersonic missile, what he says may be right but not for subsonic missiles.

 

[Indx TechStyle]

Who? I am a member and their members as as nationalist as we are. They just do not allow much bragging and that is all.

Problem isn't that, server's location is near about same as that of PDF.

 

[Chinmoy]

Why in the video akash propulsion is stopped a while before blowing up?

Its not stopped. It was the rocket motor which stopped working and the RAMJET took over just before hitting the target.

 

[G10]

Its not stopped. It was the rocket motor which stopped working and the RAMJET took over just before hitting the target.

So propulsion switched over from rocket motor to ramjet. Thanks for info.

 

[sorcerer]

Nirbhay missile: Why India’s first indigenous long range sub-sonic cruise missile is special

Nirbhay missile is India's first indigenously designed and developed long range sub-sonic cruise missile! Designed and made by DRDO (Defence Research & Development Organisation), the missile was recently test fired successfully. "The flight test achieved all the mission objectives completely from lift-off till the final splash," said a Ministry of Defence release. The Nirbhay missile can be deployed from multiple platforms, says DRDO. We take a look at some key facts about the Nirbhay missile and why its important for the country:

According to DRDO, Nirbhay missile is a 1000-km class cruise missile that has the capability to strike "deep" into the enemy's territory. The missile has the capability to loiter and cruise at 0.7 Mach, at altitudes as low as 100 metres, says DRDO.

After the launch of the missile, its booster motor gets separated. The missile's turbofan engine then gets switched on for further propulsion. The booster motor is required for the initial launch.

The "fully autonomous" missile is crucial to India's defence and strike capabilities. This is because, cruising at low altitudes, it can avoid detection, says DRDO.

"The guidance, control and navigation system of the missile is configured around the indigenously designed Ring Laser Gyroscope (RLG) and MEMS based Inertial Navigation System (INS) along with GPS system," says DRDO.

For the recent trial, the missile cruised for a total time duration of 50 minutes, achieving a range of 647 km.

This was not the first trial of the homegrown missile. The maiden launch in 2013 had been a partial success. Since then the Nirbhay missile has tasted both success and failure in various trials. Its successful development would provide a definite boost not only to the armed forces, but also the indigenous defence industry and India's capability to design and develop such lethal weapons.

With Nirbhay missile, India joins the select league of nations that possess the ability to make sub-sonic cruise missile


http://www.financialexpress.com/pho...-subsonic-cruise-surface-to-air-drdo-india/8/